There is only one set of headers that will work (under chassis) with Edelbrocks and Indy SRs. TTi sells them, and they aint cheap. But, if he plans to upgrade later, I'd run the iron heads now, and then use Indy SREZs, which were designed for B/RB A bodies. They are a better head too. Using other types I think can be done, but not without extensive fitting/modifying/bending/dimpling. I've never done it, just heard it gets ugly. Take a look at Big BlockDart.com. They have all kinds of info on the swaps and what works easiest.